/Engine/Plugins/Animation/RigLogic/Source/RigLogicLib/Public/dna/layers/MachineLearnedBehaviorWriter.h
The neural network storage will be implicitly resized (if needed) to provide storage for the new data.
void setNeuralNetworkOutputIndices ( std::uint16_t netIndex, const std::uint16_t * outputIndices, std::uint16_t count )